Is ist possible to add custom views to agenda which can be accessed via org-agenda-view-mode-dispatch?
Its very convenient to press just "v" and "l" to make agenda show completed tasks. It would be great to be able to filter the current view for special TODO keywords or tags the same way. Like pressing "v" and "n" to only show todos with NEXT keyword in the current agenda view.
I am fairly new to emacs.
It's not possible out of the box. org-agenda-view-mode-dispatch is just a big case statement: if the user presses this key, then call that function. The set of keys that it recognizes and the set of functions that it calls is fixed beforehand.
That does not prevent you from rewriting the function in a more extensible way (and if you do, you might want to propose it for inclusion to Org mode: send mail to the Org mode mailing list).
